Results 21 to 30 of about 53,373 (262)

Electrically Conductive Roller-Compacted Concrete (RCC) Containing BOFS, Steel Fiber, and Steel Shaving

open access: yesAdvances in Civil Engineering, 2023
In this study, the feasibility of using steel fibers and steel shavings in roller-compacted concrete containing coarse basic oxygen furnace slag aggregate was investigated in order to improve its mechanical properties and to produce an electrically ...
Danial Nasr, Ehsan Bavafa
doaj   +1 more source

Prediction of Shear Strength for Steel-Fiber High-Strength Concrete Corbels with the Softened Strut-and-Tie Model

open access: yesBuildings, 2023
On the basis of the test results of nine steel-fiber high-strength concrete corbel specimens subjected to a vertical load, the influence of the steel fiber content on the shear performance of corbels was analyzed.
Shu-Shan Li   +7 more
doaj   +1 more source

Study on mechanical properties and strength relation between cube and cylinder specimens of steel fiber reinforced concrete

open access: yesAdvances in Mechanical Engineering, 2019
An experimental study was performed on the splitting tensile strength of steel fiber reinforced concrete using cube and cylinder specimens. Effects of volume fraction, aspect ratio, geometry, and tensile strength of steel fiber on the splitting tensile ...
Haitang Zhu   +4 more
doaj   +1 more source

Investigation of metakaolin and steel fiber addition on some mechanical and durability properties of roller compacted concrete

open access: yesCase Studies in Construction Materials, 2022
In this experimental study, physical, strength and durability properties of roller compacted concrete (RCC) containing metakaolin with or without steel fiber are investigated.
Masood Abu-Bakr   +2 more
doaj   +1 more source

Comparison Between the Effects of Straight And Hook Steel Fibers on Fresh and Hardened Characteristics of Concrete [PDF]

open access: yesE3S Web of Conferences, 2023
This research looked into how steel fiber type and concentration influence Steel Fiber Reinforced Concrete (SFRC) mechanical properties. According to tests, the percentage of steel fibers in SFRC is directly related to compressive, flexural, splitting ...
Salman Ban A., Hassan Rafea F.
doaj   +1 more source

Effect of Surface Shape and Content of Steel Fiber on Mechanical Properties of Concrete

open access: yesAdvances in Civil Engineering, 2020
Steel fiber reinforced concrete (SFRC) has gained popularity in the last decades attributed to the improvement of brittleness and low tensile strength of concrete.
Lijuan Zhang   +3 more
doaj   +1 more source

Investigation on the Influence of Type of Steel Fibers on Shear Failure of HPFRCC Beams

open access: yesMATEC Web of Conferences, 2018
This paper investigates the influence of different types of steel fiber on the mechanical properties of High Performance Fiber Reinforced Cementitious Composite (HPFRCC) as well as the shear failure mode of steel reinforced HPFRCC beams.
Nikbakht Ehsan   +3 more
doaj   +1 more source

Experimental study on recycled steel fiber-reinforced concrete under repeated impact

open access: yesReviews on Advanced Materials Science, 2023
Recycled steel fiber comes from the waste produced by machining. Adding recycled steel fiber into concrete can significantly enhance the toughness of concrete.
Gao Yongtao   +7 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

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